Circuit-closer



W. G. LYNCH.

CIRCUIT CLOSER.

APPLICATION FILED ra,\|z.1o.1915.L

A of f WALTER G. LYNCH, 0F ROANOKE RAPIDS, NORTH CAROLINA.

CIRCUIT- CLOSER.

Application filed March 10, 1915.

To all Iwhom t may concern Be it known that I, fammi G. LYNCH, a citizen of the United States, residing at YRoanoke Rapids, in the county of I-Ialifax and State of North Carolina, have invented certain new and useful Improvements in Circuit-Closers, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to certain improvements in circuit closers, and it is an object of the invention to provide a novel and improved device of this general character comprising a movable Contact mounted for rocking movement and coacting with continuous parallel spaced conductors and wherein said movable contact is normally maintained in an inoperative adjustment through the medium of a fusible member.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved circuit closer4 whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein- Figure 1 is a view partly in longitudinal section and partly in elevation illustrating a circuit closer constructed in accordance with an embodiment of my invention; and Fig. 2 is an elevational view with a portion of the casing broken away, illustrating certain details of construction of my impro-ved circuit closer as herein embodied.

As disclosed in the accompanying drawings, my improved circuit closer consists of a. block 23 which is formed of insulating material, a base plate or casing 24C which incases the block and a gravity contact carrying arm 25. The block 23 is provided with two longitudinal bores or channels which are parallel to each other and are adapted to receive the two wires 26 and 27. These wires 2G and 27 exterior of the block 23 are ar- Speciication of Letters Patent.

Patented Aug. S, 1916.

sei-iai No. 13,511.

ranged in an insulating jacket 28. In the block 23 is formed a recess 2S, which `is relatively deep and is considerably wider than the space between the wires 26 and 27. The arm 25 is pivo-ted on a pin 29, to a lug or ear 30 located above the recess 28, when the block is secured to the wall. The lower free end of the arm 25 is provided with a wedgeshape contact or bridge piece 31 on that face which is adjacent the block 23. The other face of the arm carries a weight 32 which is heavy enough to cause the member 31 to force its way in between the wires 26 and 27 when the cord 33 which normally holds the arm in open circuit position, :asin Fig. 1, is severed by burning.

The casing 24 is secured by screws or other suitable fastening means to the wall, so as to hold the block in position thereagainst. It will be seen that when the contact or bridge piece 3l enters the recess 2S and wedges itself between the wires 26 and 27, these members will be electrically connected.

In reduction to practice, it has been found that the form of this invention illustrated. .in the drawings, and referred to in the above description as the preferred embodiment, is the most etiicient and practical; yet realizing that the conditions concurrent with the adoption of this device will necessarily vary, it is desirable to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of this invention, as defined by the append ed claim.

That is claimed is A circuit closer including a wall block of insulating material provided with a recess opening through its outer face, continuous parallel spaced conductors passing through the block and intersecting the recess, those portions of the conductor contained within the recess being spaced from the side and bottom walls thereof, a pivoted arm mounted upon the block, the pivot point of said arm being above the recess, a wedgeshaped contact member carried by the free end of the arm, a weight member mounted upon the arm at the free end thereof, and a fusible member coacting with the arm for normally In testimony whereof I hereunto ufiix my slginitnre in the presence of two witnesses.

WALTER G. LYNCH.

holding the sanne in open circuit position, wherein the Contact inelnber is Withdrawn from the recess7 said :irin being adopted to fait by gravity when released, whereby the Wedge-shaped Contact ineinber is wedged between those portions of the Conductors intersecting the recess.

iVitnesses R. L. Town7 Mrs. HULDAII E. LYNCH.

Copies of this patent may be obtained for ve cents each, by addressing` the Commissioner of Patents, Washington, I). G. 

